Notions of Knowledge Structures

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Description

Computes notions of knowledge structures.

Usage

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Arguments

x

An R object of class kstructure.

Details

A notion is a set of items always jointly contained in some knowledge states. Consequently, these items carry the same information and may therefore be considered equivalent. A knowledge structure where each notion contains only one item is considered discriminative.

Value

A set of sets, each representing one notion of the knowledge structure.

References

Doignon, J.-P., Falmagne, J.-C. (1999) Knowledge Spaces. Heidelberg: Springer Verlag.

See Also

reduction.kstructure, kstructure, set

Examples

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kst <- kstructure(set(set("a"), set("a","b"), set("a","c"), set("d","e"), 
   set("a","b","d","e"), set("a","c","d","e"), set("a","b","c","d","e")))
knotions(kst)